
Job Title: Java Developer
Experience: 4 –10 Years
Location: Mumbai / Bangalore
Employment Type: Full-time
We are looking for experienced and passionate Java Developers with strong expertise in Core Java, multithreading, and performance tuning. You will be responsible for designing and developing high-performance, scalable, and resilient backend systems. This is an exciting opportunity to work on complex, enterprise-level systems and modern architectures like microservices and event-driven frameworks.
• 3–10 years of hands-on experience in Java (8 or above) development.
• Strong foundation in OOPs, data structures, algorithms, and design patterns.
• Deep understanding of multithreading, concurrency, and synchronization techniques.
• Experience with Spring Boot, Spring MVC, JPA/Hibernate.
• Good working knowledge of RESTful API development.
• Proficient in SQL and experience with relational databases like MySQL, PostgreSQL, etc.
• Familiarity with Git, Maven/Gradle, and CI/CD pipelines.
• Exposure to Agile/Scrum methodology

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
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Job Description: We are looking for a talented and motivated Android Developer Intern to join our team for a 6-month internship. This is an exciting opportunity to gain hands-on experience in Android app development and work on real-world projects.
Key Responsibilities:
- Collaborate with the development team to design and develop Android applications.
- Write clean, efficient, and maintainable code following best practices.
- Assist in the integration of third-party APIs and libraries.
- Participate in code reviews and provide constructive feedback.
- Troubleshoot, debug, and resolve application issues.
- Stay updated with the latest industry trends and technologies in Android development.
- Document code and maintain technical documentation.
Requirements:
- Currently pursuing or recently completed a degree in Computer Science, Software Engineering, or a related field.
- Strong understanding of Java/Kotlin and Android SDK.
- Familiarity with RESTful APIs to connect Android applications to back-end services.
- Knowledge of Android UI design principles, patterns, and best practices.
- Experience with version control systems such as Git.
- Strong problem-solving skills and attention to detail.
- Ability to work independently and as part of a team.
- Excellent communication and collaboration skills.
How to Apply: Interested candidates are invited to send their resume and a brief cover letter with the subject line "Android Developer Internship Application."
About the Role
As a result of our rapid growth, we are looking for a Java Backend Engineer to join our existing Cloud Engineering team and take the lead in the design and development of several key initiatives of our existing Miko3 product line as well as our new product development initiatives.
Responsibilities
- Designing, developing and maintaining core system features, services and engines
- Collaborating with a cross functional team of the backend, Mobile application, AI, signal processing, robotics Engineers, Design, Content, and Linguistic Team to realize the requirements of conversational social robotics platform which includes investigate design approaches, prototype new technology, and evaluate technical feasibility
- Ensure the developed backend infrastructure is optimized for scale and responsiveness
- Ensure best practices in design, development, security, monitoring, logging, and DevOps adhere to the execution of the project.
- Introducing new ideas, products, features by keeping track of the latest developments and industry trends
- Operating in an Agile/Scrum environment to deliver high quality software against aggressive schedules
Requirements
- Proficiency in distributed application development lifecycle (concepts of authentication/authorization, security, session management, load balancing, API gateway), programming techniques and tools (application of tested, proven development paradigms)
- Proficiency in working on Linux based Operating system.
- Working Knowledge of container orchestration platform like Kubernetes
- Proficiency in at least one server-side programming language like Java. Additional languages like Python and PHP are a plus
- Proficiency in at least one server-side framework like Servlets, Spring, java spark (Java).
- Proficient in using ORM/Data access frameworks like Hibernate,JPA with spring or other server-side frameworks.
- Proficiency in at least one data serialization framework: Apache Thrift, Google ProtoBuffs, Apache Avro,Google Json,JackSon etc.
- Proficiency in at least one of inter process communication frameworks WebSocket's, RPC, message queues, custom HTTP libraries/frameworks ( kryonet, RxJava ), etc.
- Proficiency in multithreaded programming and Concurrency concepts (Threads, Thread Pools, Futures, asynchronous programming).
- Experience defining system architectures and exploring technical feasibility tradeoffs (architecture, design patterns, reliability and scaling)
- Experience developing cloud software services and an understanding of design for scalability, performance and reliability
- Good understanding of networking and communication protocols, and proficiency in identification CPU, memory & I/O bottlenecks, solve read & write-heavy workloads.
- Proficiency is concepts of monolithic and microservice architectural paradigms.
- Proficiency in working on at least one of cloud hosting platforms like Amazon AWS, Google Cloud, Azure etc.
- Proficiency in at least one of database SQL, NO-SQL, Graph databases like MySQL, MongoDB, Orientdb
- Proficiency in at least one of testing frameworks or tools JMeter, Locusts, Taurus
- Proficiency in at least one RPC communication framework: Apache Thrift, GRPC is an added plus
- Proficiency in asynchronous libraries (RxJava), frameworks (Akka),Play,Vertx is an added plus
- Proficiency in functional programming ( Scala ) languages is an added plus
- Proficiency in working with NoSQL/graph databases is an added plus
- Proficient understanding of code versioning tools, such as Git is an added plus
- Working Knowledge of tools for server, application metrics logging and monitoring and is a plus Monit, ELK, graylog is an added plus
- Working Knowledge of DevOps containerization utilities like Ansible, Salt, Puppet is an added plus
- Working Knowledge of DevOps containerization technologies like Docker, LXD is an added plus
Responsibilities:
• Take on complex problems that span multiple components and teams.
• Independently own one or more multiple modules, which include: requirement analysis, design, development, maintenance & support
• Write extensive, efficient code to address complex modules that handle the interaction between multiple components.
• Rapidly iterate to add new functionalities and solves complex problems with simple and intuitive solutions
• Produce architecture with clean interfaces, that are efficient and scalable
• Participate and contribute to architectural discussions
• Solve production issues. Investigate and provide solutions to minimize the business impact due to the outage
• Continuously improve performance metrics of modules you own.
• Collaborate effectively across teams to solve problems, execute and deliver results
Requirements:
• Experience: 3+ years
• A Bachelor's or Master's Degree in Computer Science
• Software engineering and product delivery experience, with a strong background in algorithms
• Experience in architecting & building real-time, large-scale e-commerce applications
• Experience with high-performance websites catering to millions of daily traffic is a plus
• Excellent command over Data Structures and Algorithms
• Experience with web technologies, Go/Java/Python
• Language: GO or Python
• Strong expertise in DS and Algo
• Strong leadership skills - have experience mentoring, building products from scratch or incumbent in design and architecture.
• Have worked in the scaling of the system right from scratch.
• Someone worked in small user base to a large user base and wrote optimized code
• Both HLD and LLD
Skills & Abilities:
1. Language: Java, J2EE, springboot, angular, react, node, (CSS: Tailwind CSS + angular Material) etc.
2. OS : Linux, windows
3. Database : Oracle, postgres, PL/SQL
4. Desirable : API integration, CI/CD, automation, working experience in the mobile financial domain
5. Able to mentor and guide juniors
6. Able to resolve customer queries independently
7. Able to write test cases and execute test plans
8. Added advantage (Good to have): application security, RabbitMQ, Apache Kafka, Grafana, Prometheus, MongoDB, shell scripting basics
Job Purpose: At the Mobiquity project engineering team, our core job is to customize, install, configure and support the customer during the entire project lifecycle.
Principal Accountabilities Development
1. Write code in Java and java based technologies as well as web GUI development using latest technologies like, angular, react, conforming to company guidelines against written requirements & high-level design documents, particularly for complex modules that cannot be handled by junior developers. Work in an IDE while developing code ( especially in Java) and use GIT, SVN or any other CM tool being used in the company, for checking in and checking out the code being developed.
2. Submit developed code for review, incorporate required changes and conduct Unit testing, after preparing Unit Test Plans and necessary stubs.
3. Review code offered by others and document response in assigned format.
4. Participate in (a) the integration of the developed code with code developed by other team members (this could happen on customer premises if appropriate environment is not available in-house) (b) preparation of the environment for integration testing (c) execution of integration testing (d) fixing the problems relating to the offered code as discovered in the integration testing.
5. Participate in load testing conducted on the final product and fix problems encountered.
6. Assist Product Validation Group in setting up the test environment, writing test cases, generating stubs and executing tests.
7. Review test cases written by the Product Validation Group.
8. Install product in customer location, train the customer reps on product features and operation & maintenance procedures, and complete user acceptance testing, making any changes in the final deliverable as required.
9. Handle customer queries and complaints received directly or through the company support organization.
10. Change code to fix reported customer problems after trouble shooting, get the fix reviewed and complete selective regression testing.
11. Draft user documentation for consolidation by the technical documentation team. This could include GUI, API, O&M and technical documentation relating to COTS. Review drafts prepared by junior developers.
12. Help maintain design requirement documents as directed.
13. Participate in the development, release, support & enhancement activity through multiple release cycles and multiple products
14. Proactively seek feedback/reviews on self-development, learning, and developed code. Responsible for completing the assigned task in all aspects by proactively seeking reviews, and updating the status to supervisors.
15. Ensure the task assigned is understood in all respects and communicate effectively and raise necessary alarms to reporting leads if anything is not understood or no progress is possible.
Capability Building
1. Assist junior developers in coding, testing, and troubleshooting.
2. Train and support a new member joining the team with little or no experience in the development environment, technology domain, and the specific work underway. Focus on scope of work familiarization.
● Proven work experience as a Back-end developer.
● In-depth understanding of the entire web development process (design, development and deployment).
● Proficient in Java, with a good knowledge of its ecosystems
● Basic understanding of JVM, its limitations, weaknesses, and workarounds
● Ability to decide when to use relational vs NoSQL databases and must be experienced with at least one of
the relational databases (MySQL) as well as experience with ElasticSearch will be good to have
● Familiarity with concepts of MVC, JDBC, and RESTful
● Experience with Spring, Spring Boot, Spring MVC
● Experience in CI/CD and Cloud technologies
● Expertise in developing enterprise-level web applications and RESTful APIs using MicroServices, with
demonstrable production-scale experience
● Familiarity with front-end languages (e.g. HTML, JavaScript and CSS) - Not mandatory
● Participation in coding competitions such as hackathon, hackerrank will be added advantage.
We are seeking extremely smart & independent senior developers who are gung ho about building large scale systems that are going to have a big impact on millions of customers. You will:
Responsibilities:
- Lead design and development of products working closely with business team.
- Independently own software components and co-own entire applications with a small group of fellow developers.
- Formally mentor junior software engineers on the team, reviewing design documents, (peer) reviewing code, providing design direction and guidance.
- Build performant, scalable, yet secure, enterprise ready back end architectures that can support millions of users in parallel.
- Establish strong engineering best practices and champion their adoption.
Requirements:
- 4+ years' experience in software product development and delivery.
- Bachelors or Masters degree in engineering (preferably computer science or sister branches) from a reputed institute (preferably IITs, NITs, or other top engineering institutes).
- Strong grasp of CS fundamentals, algorithms and excellent problem-solving abilities.
- All experience should be from good product development or e-commerce background.
- Able to take ownership of working with at least one of mobile or web app teams for complete integration with backend.
- Must have shown good stability in all your previous associations.
- Have strong backend knowledge and cloud development exposure.
- Proficiency in Java, Spring boot, Hibernate, REST API development.
- Worked with at least 1 RDBMS (Mysql preferred).
- NoSql is a plus.
- Have used or are very hands-on with Microservices, Docker, Kubernetes, Gradle/Ant, Kafka, GIT/bitbucket in a very agile work place.
- Writing high quality code which is made better by unit tests and integration tests is how you work.
- Comfortable with exploring proven open source tech stack like Grafana, Kibana, Jira, Prometheus, caches like Redis/Memcached, task queues like celery, to name a few.
- Knowledge of test driven development and AWS tech stack will be a good plus.
Looking for Java Fullstack Developer with 4-5yrs of experience.
Job Rolre : Java Full Stack Developer
Experience : 4-5 yrs
Job Type : Permanent
Locations : Hyderabad/Bangalore/Chennai/Mumbai/Pune/Gurgaon
Notice Period : Max 30 Days
Description :
- Experience 4 – 5 years
- Good in Backend Springboot
- write Rest API (Should be strong in this area)
- Good Analytical ability, Good coding practice, Knowledge of Spring Security (Desirable),
- UI Knowledge of Angular (Average knowledge should be enough)
Need ASAP Joiners!!
Interested Who can Join in maximum of 30 days please share your updated profile with the below-mentioned necessary details
Job Role : Backend Engineer / Sr. Backend Engineer
As a Senior Backend Platform Engineer, you will work closely with engineers/scientists in a small, but fast-growing, team environment while i) applying the state of the art AI technologies in the field of deep learning and computer vision to design and develop the user recommendation platform to help our users to find their best matches and ii) building scalable and reliable backend API services to serve massive volume of client traffic while ensuring best user experience. A successful candidate will have strong technical skills and a motivation to achieve results in a fast-paced environment.
In this Senior Backend Platform Engineer role, you will:
- Design, develop, and operate resilient distributed services that run on ECS or Kubernetes to serve hundreds of millions of users around the world
- Collaborate with various functional teams on expansion of our recommendation systems
- Influence the roadmap and product development of KlearNow App and services
- Recruit, inspire, and develop team members
We're looking for:
- BS/MS in Computer Science or equivalent with 1-5 or 5-10 years minimum industrial working experiences
- Excellent knowledge of Computer Science fundamentals, with strong competencies in data structures, algorithms, software design and coding
- Strong designing and building distributed backend systems handling high volumes of traffic
- Experience in handling ambiguous business requirements with excellent prioritization, time management abilities, and a focus on execution
- Passion to solve complex problems and make continuous improvements
- Experience in Search and Recommendation Systems preferred
- Excellent knowledge and experience on a backend language, like Java, Scala, Go, Node.js, etc.
Bonus points if you have:
- Experience in design and development using NoSQL, such as DynamoDB, Cassandra, or RocksDB
- Experience with Aerospike, ElasticSearch, Kafka, and Spark
- Experience with Agile development methodology and CI/CD
- Experience with Docker containers along with Kubernetes or ECS
If you wish to know more on the opportunity and like to pursue this further, then I would suggest that you share your updated CV and suggest a good time when we could connect.
Why us
KlearNow is operational and a certified Customs Business provider in US, Canada and UK with plans to grow in many more markets in near future. Be a part of a rapidly growing company where you will have the opportunity to extend our leadership position and fast-track innovation behind AI-powered intelligent supply chain solutions.
Over and above the core customs clearance solution, KlearNow is also providing consolidated freight visibility, data and document management and intra-port activity for efficient Drayage.
To know more about KlearNow, please visit our website https://www.klearnow.com/">https://www.klearnow.com/
KlearNow has a flexibility of a small start-up with the security of a well-funded organization with strong backers and advisors.
KlearNow is transforming B2B supply chains with its smart Logistics as a Service (LaaS) platform that connects data, people, processes, and organizations. Its AI-powered platform digitizes paper-based transactions—streamlining customs clearance and drayage services. KlearNow empowers importers, exporters, freight forwarders, and supply chain partners by providing new levels of visibility and productivity to reduce costs and create enhanced customer experiences
Over and above the core customs clearance solution, KlearNow is also providing consolidated freight visibility, data and document management and intra-port activity for efficient Drayage.
KlearNow grows, we’re looking for an Engineering Leader who is passionate about people growth and organizational development. This is a unique opportunity to help build the products and practices that will support KlearNow growth over the next round of funding. In this role, you will reimagine enterprise logistics software and build global products that enable KlearNow expand in Americas, Europe and Asia.
Be a part of a rapidly growing, series B funded tech company where you will have the opportunity to extend our leadership position and fast-track innovation behind AI-powered intelligent supply chain solutions.
Responsibilities:
Develop new back-end features in one Python/Java/Go
Collaborate with key stakeholders across different stages of the SDLC
Deliver high quality code and lead validation of the developed features
Skills and Qualifications:
5+ years of working experience in backend software development
Bachelor’s degree in Computer Science
Solid foundation in data structures, algorithms and software design
Strong analytical and debugging skills
Proficiency in one of Python/Java/Go
Hands on experience on big-data technologies such as Apache Spark, Kafka, Cassandra etc
Familiarity with agile practices
About Araali:
Araali Networks is a SaaS based cybersecurity startup that has raised a total of $10M from well known investors like A Capital, Firebolt Ventures and SV Angels, and and through a strategic investment by a publicly traded security company.
The company is disrupting the cloud firewall market by auto-creating nano-perimeters around every cloud app. The Araali solution enables developers to focus on features and improves the security posture through simplification and automation.
The security controls are embedded at the time of DevOps. The precision of Araali controls also helps with security operations where alerts are precise and intelligently routed to the right app team, making it actionable in real-time.











